What did you do to your NBS GMT800 Tahoe/Yukon Today?

[Fosscore]

The video is upside down, I know, but you get the gist.

See photo below with yellow arrow for where I am hearing the noise.

AC clutch, idler puller, bearings, belt?

A/C on makes the noise.
A/C off some noise, but not as noticeable. Sometimes gets a bit quieter after more driving. Quite pronounced at start up. But always clicking.

A\C blows cold and strong.

Yellow arrow is where noise is most noticeable.

 

[Tonyrodz]

The video is upside down, I know, but you get the gist.

See photo below with yellow arrow for where I am hearing the noise.

AC clutch, idler puller, bearings, belt?

A/C on makes the noise.
A/C off some noise, but not as noticeable. Sometimes gets a bit quieter after more driving. Quite pronounced at start up. But always clicking.

A\C blows cold and strong.

Yellow arrow is where noise is most noticeable.
View attachment 207584

Are you sure it's coming from the ac compressor? That's where the arrow looks like it's pointing. I had a very similar nouse and it was my tensioner pulley. Have a stethoscope? If not a long handled screw driver works. Touch the metal tip to where you think the noise is coming from and put your ear to the handle-- might give you a better idea of the location of the noise. Be careful tho, lots of moving parts!!

 

[Fosscore]

Are you sure it's coming from the ac compressor? That's where the arrow looks like it's pointing. I had a very similar nouse and it was my tensioner pulley. Have a stethoscope? If not a long handled screw driver works. Touch the metal tip to where you think the noise is coming from and put your ear to the handle-- might give you a better idea of the location of the noise. Be careful tho, lots of moving parts!!

Not 100% sure. Started truck again, and fairly quiet. Can hear it clicking tick tick sort of like a lifter tick but not that fast at rev, but not really a whine.

 

[Tonyrodz]

Not 100% sure. Started truck again, and fairly quiet. Can hear it clicking tick tick sort of like a lifter tick but not that fast at rev, but not really a whine.

Noises are really hard to diagnose under the hood, so many moving parts.

 

[Fosscore]

Noises are really hard to diagnose under the hood, so many moving parts.

Will keep listening and see if I can figure it out.

Thx man.

 

[HiHoeSilver]

The video is upside down, I know, but you get the gist.

See photo below with yellow arrow for where I am hearing the noise.

AC clutch, idler puller, bearings, belt?

A/C on makes the noise.
A/C off some noise, but not as noticeable. Sometimes gets a bit quieter after more driving. Quite pronounced at start up. But always clicking.

A\C blows cold and strong.

Yellow arrow is where noise is most noticeable.
View attachment 207584

Mine does the same thing. Maybe a little more squeak that tick. I sat there with aerokroil with the straw and started shooting stuff one by one. AC tensioner on mine. I figured wth and ordered : ac belt, ac tensioner, idler, seep tensioner, serp belt, water pump.

 

[Tonyrodz]

Mine does the same thing. Maybe a little more squeak that tick. I sat there with aerokroil with the straw and started shooting stuff one by one. AC tensioner on mine. I figured wth and ordered : ac belt, ac tensioner, idler, seep tensioner, serp belt, water pump.

Did it work? Or are you still waiting on the parts?

 

[Fosscore]

Mine does the same thing. Maybe a little more squeak that tick. I sat there with aerokroil with the straw and started shooting stuff one by one. AC tensioner on mine. I figured wth and ordered : ac belt, ac tensioner, idler, seep tensioner, serp belt, water pump.

Hmmm... grr. Mostly tick..lol.

You have links to those parts BTW?

 

[HiHoeSilver]

Did it work? Or are you still waiting on the parts?

They're in a pile in my garage. Duh.

 

[HiHoeSilver]

Hmmm... grr. Mostly tick..lol.

You have links to those parts BTW?

All Rockauto.